Email Attachment Compressor
Reduce PDF & image sizes under 25MB limits to avoid mail client delivery issues instantly.
Drag & drop multiple files
or browse files
Supports: .pdf
Max 20 files, 50MB each
Email Attachment Compressor - Shrink Files to Send Easily
How to Compress Email Attachments
- Upload files: Select one or more PDFs, JPEGs, WebPs, or PNGs.
- Specify targets: Choose your target size to fit standard email boundaries (usually 25MB).
- Download: Optimize files locally and download them for quick attachment.
Why Use Our Attachment Compressor?
- Bypass SMTP Limits: Gmail, Outlook, and Yahoo restrict files to 25MB. Keep yours under the limit.
- Batch Processing: Upload and compress multiple attachments simultaneously.
- Maintain Formatting: Document vector paths and text layouts remain completely unchanged.
Common Scenarios for Attachment Optimization
Sending resumes, scanned portfolios, digital booklets, and monthly reports often fails due to heavy graphic assets. Compressing your attachments ensures they are delivered directly to the inbox instead of getting uploaded as temporary cloud drive links that expire or require permissions.
Safe and Secure File Reduction
We process your corporate records, personal CVs, and designs client-side in the browser. The files are not uploaded to remote cloud networks, preventing corporate compliance violations and data snooping.
Frequently Asked Questions
What is Gmail's maximum attachment size?
Gmail limits attachments to 25MB. If you attach multiple files, their combined size must be under 25MB.
Will compressing my attachments change their layouts?
No. The formatting, layout, and text searchability of your PDFs will remain completely intact.
How do I attach multiple large files?
Simply run each file through our local compressor. You can shrink them by up to 90%, fitting more documents inside a single message.
Can I compress PDFs and images together?
Yes, you can upload PDFs and image types sequentially and optimize them individually to match their respective targets.
Does this tool support files other than PDFs and images?
Currently, our tool is optimized for heavy files like PDFs, JPEGs, PNGs, and WebPs, which represent the bulk of email attachment payloads.